With the seasonal perception cycle we symbolise the life cycle of the Idea. First, the seed is found - a potential in this seed is seen and thus is it preserved. Second, there is the phase of the growth of this seed - the unleashing of this potential. Then, once it has been actualised, it may be utilised - its fruits are harvested, until its finite nature is perceived, at which point its fruits are clinged to, feeling as if nothing more is left. Yet, more seeds are found, and thus the cycle restarts.
How may we explain T and F in terms of cycling? Game theory wise, one needs a means of valuation, one then uses this value filter on real world objects to determine what one values or devalues, and then performs rational calculations to attain such valuations and then works to achieve them. Unresolvable conflict may follow, which means a re-evaluation of ones ideals.
Have you a better explanation? What I just described suggests Fi->Fe->Ti->Te