“…zeal,  by itself, must be of such a kind that it does not come just in a spurt and then eventually fade away. It must be of such a kind that it will last. This means the zeal must be tempered by something deeper…a sort of constant point for your whole life. It keeps you going even when you’re discouraged, because you see that there is something above towards which you are striving, and which does not depend upon your moods or your opinions. It is something which must be your constant possession. It is your determination to get to heaven.”
(Fr Seraphim Rose+ ‘In Step with St Patrick homily)