Can u help me refine these sentences please ?

I have always aspired to choose a career that would mean work that really stimulates me and holds a natural appeal for me. The first and the simplest emotion that we discover in human mind is curiosity. My curiosity in Mechanical Engineering was evoked in the earlier stages of my life when my uncle presented me a ‘Meccano’ set. Although initially, I could not comprehend the basic principles underlying what I was embling, the whole setup of the model construction fascinated me. As I kept myself glued to Meccano all through my schooling, I realized they were more than just toys and could see the basic mechanical principles in action, which prompted me to participate in many science exhibitions and further engrossed my interest in the field of Mechanical Engineering and also for selecting it as my major in my undergraduate studies.