There is tremendous power in "Here and Now"! in my view. The most common behavior of looking backward to examine what was always prevents you from being completely immersed in the "Here and Now.” If looking backward is thoughtless and doesn't help you in healing or putting a closure, it will always leave you with anger, envy, regret, remorse and like unhealthy feelings. So it's extremely important to embrace "Here and Now" with total confidence, and last but not the least, never dwell in the past.