How to live several lives at once

One life seems to be too little. Because we are not satisfied how our life has evolved so far, we are not happy with future who seems to come, we are not pleased that we will die one day, soon, and  we not realized much in this life.
But when we sleep - we dream, we live another life.

How much can love a man?

OHHHHHHHHHHHHH!!!!
Hard to say. But certainly very, very much.
Although most people do not even know what is love, man was endowed by God with the ability to love beyond imagination.
And perhaps altruism, is by far the highest grade love.