In my years of meditation practice, I have both experienced time contracting (appearing to pass at great speed) or dilating and seeming to come to a near standstill.
I begin my meditation practice by relaxing and following the breath. As this settles, respiration becomes very slow. During this slowing of breath, the awareness of the heartbeat becomes more prominent, and it also appears to slow down to where the heart's contraction seems to occur in slow motion. I can feel/witness the contraction and sense (or imagine I am sensing) the opening and closing of heart valves. There is no striving or effort to do this, it is occurring along with the awareness of the rest of the body.
What I find unusual and have not been able to explain is that I am wearing an iWatch during this to record my mediation, and it shows that during these super relaxed periods when I am consciousness and experiencing a slowing of time and heartbeat, the iWatch is measuring an increase in heart rate! The HRV can get rather wonky and large as well.
This perception of space and time becoming distorted (I meditate mostly with eyes open) seems to occur more often the more I practice. After deep retreats, the phenomena can lead to strange occurrences around feeling or seeing future and past events as converging or simultaneously occurring.
This recent article https://boingboing.net/2022/08/17/is-precognition-real.html aligns with what I have experienced about these time distortions. The characteristics and phenomena that enhance precognition seem to relate to deep meditative practice.
What have you experienced in your practice around time and space distortion, and has this led to any precognition experiences, as mentioned in this article?
What does the Buddhist philosophy in different traditions say about time itself?
Does time exist? If so, how do we experientially know this? There appears just to be a never-ending change of state. Here and now seems always to be here and now, although how spacious that here and now "feels" does change.