I have been practicing Vipassana meditation for 7 years. My daily sits average 45-60 minutes. I have attended three 10-day retreats. I mention this context because Gotu Kola's effects on meditation quality are best appreciated by someone who has a consistent practice and can notice subtle changes in mental texture.
I began taking Gotu Kola after reading about its traditional use among Buddhist and Hindu monks as an aid to meditation and spiritual practice. The Ayurvedic classification of the plant as a Medhya Rasayana -- a mind rejuvenator -- specifically includes enhanced capacity for contemplation and inner awareness.
The effects on my meditation practice became noticeable around week 3. The mind settled faster. The transition from active thinking to the more spacious awareness that characterizes deeper meditation happened earlier in each session. Intrusive thoughts -- the planning, worrying, and replaying that normally populate the first 10-15 minutes -- were less forceful and less sticky. They arose, but they did not grab attention the way they normally do.
By month 2, I was reaching states of concentration and stillness that previously required a retreat setting. Not every sit, but consistently 2-3 times per week, I would drop into a quality of stillness that was qualitatively different from my normal daily practice. The Pali term is "passaddhi" -- tranquility of mind and body -- and Gotu Kola seems to lower the threshold for accessing it.
The off-cushion effects mirror the on-cushion changes. Greater equanimity in daily life. Less reactive to minor irritations. More present in conversations. A subtle but pervasive sense of mental spaciousness.
I want to be careful not to overstate this. Gotu Kola is not a shortcut to enlightenment. It does not replace practice. But it does seem to create conditions that are more favorable for the kind of mental training that meditation represents. The monks who have been using it for millennia knew what they were doing.