If you grow your heart up among the things of this world, it will grow crooked and low, having so many lowly things to attach to, and like a plant lacking proper support, it will sink to the earth, and all the fruit it bears will become soiled, or rot.
If you want your heart to grow upright, set it between the hearts of Jesus and Mary, for there is no space between those hearts, so there will be nowhere for your own to grow, but upward.
A heart placed between those two will find nothing dirty, nothing profane, nothing selfish, nothing that rots or corrupts, but only that which gives life and nourishes and perfects. Moreover, it will find, there, all the support that it needs to bear it up.
So attach your love to those great loves, God first, and Mary after... love what they love, seek what they seek, obey God... train your heart to copy theirs, and grow as close to them as humanly possible, like a vine clinging to a trellis, conforming your life to the things that framed theirs... for then your heart can truly grow heavenward!
(Thanks be to God for this light, from Whom all true light comes! +)