Present

I keep hearing, " Don't delve on the past; don't think about the future too much; Live in the present" , very often. But what is "present" ?

Technically speaking , "present " for a person is not the same for another. Let us see how this works. Assuming two persons are speaking to each other; A to B.. One can say that both of them are conversing in the "present". However, when A speaks to B, there is a time lag between A's speech and B's hearing (Sound takes time to travel between two points). In this case, the time difference is very very negligible, maybe in nano seconds ; but still there exists a time difference between these two actions. Hence, A's "present" is not the same for B.

Similarly, when we see the sun at any moment, we see the state of the sun eight seconds before (it takes 8 seconds for the suns rays to reach the earth). When we see a person , we see him as he was a few nano seconds back , as it takes time for the light to bounce from him to reach our eyes..

So, is " present" relative ?

Yes, time is relative to each individual person. However in order to have some semblance, there is a common time (GMT) ; guess we can touch base with that !!!!!