Jesus is to be taken most seriously because it's a matter of critical importance. If you don't take him seriously, then you do not know him well enough yet. Who is he to you? Whom do you treat him as? If you acknowledge that your eternal destination depends upon him, then do you even trust in him with your present life? Is your living consistent with what you believe in? To become like Jesus should be our foremost aspiration because it is the highest aspiration for us.