How? How does one get to the point where their heart aches and burns because of how much they love God. That they gain deep and true sorrow for their sins? Does one pray for these things? I mean, throwing yourself at the altar for the love of God, how did the saints do it? Was it a gift they were given? Is it something one can acquire if God deems them worthy?
I think that this process can be different for everyone.
If you think about it, the saints lived their lives totally for God, where they felt called to serve Him and consecrate their lives to Him.
For us as lay people–unless we feel called to serve Him in the religious life–we can do our best to serve Him by trying to be as close to Him as possible. This may be different for everyone, depending upon where they are in their life.
What I mean by that is by our different schedules and obligations–work schedule, family life, home life, student life, and so on.
For example, we can try to go to Mass as much as possible. We can go to Adoration before the Blessed Sacrament or sit before the Tabernacle in church, and spend time with the Lord in that way.
We can try and do the devotions that we like to do, whether it is to pray the Rosary, the Chaplet of the Divine Mercy, read Scripture, the Liturgy of the Hours, or pray certain Novena prayers/spend time in prayer, or pray other favorite prayers that we like.
We can do anything that we can/like, that would draw us closer to God, and that would bring our minds closer to God and His Kingdom, and keep our minds focused on God.
I personally believe that if we make the personal effort to reach out for a closer relationship to God in the best way that we can, that God will respond to our efforts.