I finished my morning quiet time with an exercise of breathing out resentment, breathing in joy; breathing out anxiety, breathing in peace; breathing out hate, breathing in love, breathing out want, breathing in thanksgiving; breathing out fear, breathing in trust. Then I am ready to start my day.
Time is not a line but a dimension, like the dimensions of space. If you can bend space you bend time also, and if you knew enough and could move faster than light, you could travel backward in time and exist in two places at once.