what-does-the-scent-of-hot-springs-evoke Onsen

Onsen

What Does the Scent of Hot Springs Evoke?

About this topic

The scent of onsen — the distinctive aroma of sulfur and minerals — is not merely a chemical stimulus but a powerful trigger that evokes memories, emotions, and cultural associations. This question explores how the sense of smell revives past experiences and the feeling of place, and how it connects to personal identity and collective memory. In Japanese culture, onsen holds a special place as 'toji' (hot spring therapy) or the culmination of travel, with its scent symbolizing relaxation, nostalgia, and connection to nature. Scientifically, it stems from the direct link between olfactory receptors and the brain's limbic system (memory and emotion centers), but phenomenologically, it forms the core of an immersive 'being there' sensation and an ineffable 'atmosphere'.

Conceptual positions
01 Phenomenological Position

The scent of the onsen is the core of the bodily immersion of 'being there,' forming an 'atmosphere' that cannot be captured by words or sight. The evocation of memory is secondary; the priority is the sensation of here and now.

02 Cultural-Semiotic Position

The onsen scent functions as a symbol of 'healing,' 'travel,' and 'nature' in Japanese culture, evoking collective memory and identity beyond individual experience. This symbol is also used in advertising and tourism.

03 Neuroscientific Position

The direct pathway from olfactory receptors to the limbic system instantly activates emotions and memories. The mineral components of onsen promote relaxation and have scientific basis for stress reduction.

04 Existential-Personal Position

The scent ties to one's personal life history, evoking memories of specific trips or people. It is often spoken of not as the universal 'onsen scent' but as 'the scent of that time.'

Talk entry points

  1. When you catch the scent of hot springs, what memory or emotion comes to mind first?

  2. What do you think is the difference between people who like the 'sulfur smell' and those who dislike it?

  3. Have you ever had the scent of an onsen on a trip evoke memories from your daily life?

  4. How do you think the scent of the water strengthens the sense of 'being there'?

  5. Is there a special event in your life tied to the scent of hot springs?

  6. If the scent of hot springs disappeared, how do you think the onsen experience would change?

Conceptual tensions
Universality vsIndividuality
The scent of hot springs is a common 'onsen-like' sensation for everyone, yet the memories and emotions it evokes differ completely from person to person. The tension between universal stimulus and personal meaning.
Science vsExperience
The tension between the neuroscientific mechanism of scent that can be explained and the ineffable experience felt in the moment. The remainder that cannot be fully explained gives rise to the richness of the experience.
Memory vsPresent
While the scent evokes the past, it emphasizes the bodily sensation of the present moment. The balance between living in the 'here and now' without being trapped in the past and understanding oneself through memory.
Culture vsNature
The scent of hot springs is a product of nature (geothermal heat and minerals) while simultaneously being processed by Japanese culture as a symbol of 'healing' and 'travel.' The boundary between nature and culture becomes ambiguous.
Talk note

This theme is for touching the other person's inner world through the most personal and difficult-to-verbalize sense of scent. It is not about seeking correct answers, but a time to quietly listen to and share 'what that scent speaks to you.'

Glossary
Olfactory Memory
The recollection of memories triggered by scent. It has a stronger emotional connection than visual or auditory memory and is more closely tied to long-term memory.
Onsen Scent
The distinctive aroma rising from the onsen source, caused by mineral components like hydrogen sulfide and carbon dioxide. Varies by spring quality but often described as 'sulfurous' or 'like rotten eggs'.
Proust Effect
The phenomenon where a specific scent vividly revives unconscious memories, named after Marcel Proust's novel 'In Search of Lost Time'.
Limbic System
The brain region involved in memory, emotion, and motivation. Olfactory information reaches it directly, which is why scents strongly influence emotions and memories.
Toji (Hot Spring Therapy)
The traditional Japanese practice of staying at hot springs for extended periods to heal the body, a culture dating back to the Edo period.
Talk prompts
Ice breaker

Recall a 'special scent' that suddenly drifted by recently. What was it like, and what did it evoke?

Deep dive

Try to describe the most memorable 'hot spring scent' in your life, including not just the scent but the light, sounds, and feelings at that time.

Bridge

While listening to the other person's scent memory, imagine: 'If I felt that scent right here and now, what would my feelings be?'

Further questions
  • Reasons why smell is more closely tied to memory than sight or hearing
  • The psychology of why 'disliked scents' sometimes leave stronger impressions
  • The role of 'special scents' felt in places other than onsen (home, school, etc.)
  • The possibilities and limits of reproducing 'scent' in AI or VR
  • The meaning of the difference between perfume/aromatherapy scents and onsen scent
  • How scent memory forms 'attachment to place'