Never look back. Always go right ahead. Even if you are quaking, go right ahead. Jesus said the man who puts his hand to the plow and then turns back, is not worthy of the Kingdom of Heaven. He also said:Remember Lot’s wife (Luke 17:32).
No matter how unattractive or how dangerous the road ahead may be, it is better than the road back. The road ahead may be veiled from sight – but you must teach yourself to regard the unknown as friendly. Remember that God is always on the road ahead.
…cause me to know the way wherein I should walk; for I lift up my soul unto thee (Psalm 143:8).
Turn neither to the left nor to the right, but be strong and of a good courage. And you will prosper wherever you go.
Forward,
Z gardener
Good Morning Garden 
Another insightful comment from a fellow gardener. Z.
To final entropic doom, surely. (See, for example, Eddington’s arrow of time, or any or a multitude of more nerdy treatments of entropy.)
Oh, the subtlety and sense of humor of the Lord, whose Creation is thus driven : – ))