Animalistic Instincts
In terms of our bodies we are very similar to animals.
All the basic bodily functions and instinctual desires to procreate or sleep or eat are all factors we share with the animals.
A big reason we were able to rise to the top of the food chain is that we are able to distinguish between past and future. Our brains grew because we were able to reason. We were able to extrapolate that one circumstance will lead to another. This is obvious in hunting, agriculture and gastronomy.
Tracking this specific set of foot prints and setting a trap will yield this type of animal or planting these types of seeds in this type of soil will yield this type of crop or cooking with this amount of water and this type of spice will yield a certain taste and then passing down this knowledge through generations and generations of human beings allowed our brains to grow and develop. Through reason. Through circumstance. Through deciphering how the past affects the present and then the future.
Although we have these animalistic instincts within us and we are able to reason and see how the past affects the future, we can't allow ourselves to get 'stuck' in it. We need to learn to conquer these instincts and understand this idea of time that makes us higher than the animals so we can become fully part of the Now, THIS will allow us to achieve something greater than ourselves.
Constantly concerning ourselves with the past or future won't do anything to get us upon our life task. Constantly concerning ourselves and 'dressing up' our animalistic instincts won't make us happy with life long term, only that immediate animalistic satisfaction.
Conquering your body and mind of its animalistic instincts/desires are factors we all have to deal with as humans. Dealing with the past and future is another factor we all have to deal with but allowing these factors to dominate our minds and bodies will only provide immediate rewards. It will feel good but only short term.
If you seek content and satisfaction within your own life then you need to conquer these factors that we all deal with, learn to live in the now and dedicate your life to something bigger then you!