While lacking a common theme besides being fundamentally opposed to one another, the conflicts between the three greatest powers of the multiverse has been observed by outsiders and a coherent narrative was attributed to them.
Tyneras can be seen as the opposite of entropy: the tendency of ordered systems---galaxies, planets, civilizations, life, the atom to degrade and collapse.
While Tyneras is the incarnation of unchecked growth and endless propogation and the sheding of limitation, Caspian appears to be the personification of limitation, confinement, and restriction. He is not, however, the representation of stagnancy or pure non-change, but rather slow progress as in the gradual accumulation of snow upon a mountain that eventually builds a mighty glacier, or the slow shifting of plates constructs a mighty continent. If nothing else, he is considered patient, and any who set out to create a great edifice or embark upon a grand scheme has his blessings (just so long as it has been earned).
To the outsiders, Caspian is both Saturn and Terminus, the deity of boundaries and limitations, combined with the god of ill-omens, time, debt and winter.
Caspian is also the principle of memory and judgement, and that which has been forgotten and yet will return when the time is right. Caspian is said to observe and remember all things, and when it suits his plans, he calls those into account to either reward or punish. "You will reap what you sow" is a adage that could be attributed to Caspian. His judgements can harsh, exacting down to the smallest detail, but few can say that they are completely unwarranted.
Caspian's influence is considered the greatest during the last half of the last month of the year, as well as the first half of the first month, when the darkest hour of winter has passed, and the progression of the days increase.