Reason is the process whereby we may use logic to plan for life enhancing or cogent experiences. Emotions are merely outcomes of experiences. You may have noticed that some experiences and the processes that mitigate them are within our control, and some are not.
For instance, if my ancestral home in place X is over run by some unfriendly neighboring tribes, without warning, when I am as yet a child, THIS IS BEYOND MY CONTROL.
When I grow up, I may choose to slaughter those peoples who have captured the ground where my ancestors were living, or I can choose to find another place to revere as significant in such a context. It need not be on land as such. It could in fact be on the keyboard, fretboard or register of a musical instrument. Such a place could be found in the instrumentality of some as yet undiscovered technology or within the orthodoxy of an existing group of practices.
The point being, do I choose to fashion my own identity or is it bound to the victimization of my ancestors as I seek to find conquest in the succeeding victimization of future generations of children as yet unborn? Do I resolve my personal conflict by killing and subjugating others or by reevaluating and reinventing my own place in the sun? The bellicose choice or that of the pacifist both deserve careful consideration as the former and the latter choices both tend to perpetuate themselves over time.