Rebbe Nachman said that it is especially powerful to allow tears to flow during the Amidah. How does one come to tears? What thoughts should one have while davening to allow tears to flow in order to open The Gates?
I remember hearing a story about the six day war when the Kosel was recaptured by the Israeli army and some people went for the first time in years. There was a soldier there crying. His friend who was with him asked him why is he crying. He answered "Ani Boche Al Ze Sheaini Yodea Al Ma Livkot" I am crying since I do not know why to cry.
Remebering your Aveiros the Churban of Yerushlayim and the multipile other Churbonos the Multiple sick Children, with cancer and the like, trying to relate to The Scheinahs Tzar in Golus and all of Human suffering in General.
I typically try to focus on the level of humility described in the Gemara (Masekhet Hullin 89A):
I bestowed greatness upon Abraham, yet he said to Me, "I am but dust and ashes"; upon Moses and Aaron, yet they said: "And we are nothing"; upon David, yet he said: "But I am a worm and no man".
If these giants of Jewish history were "dust and ashes", "nothing" or "[worms and not men]", how much less significant am I, in all of my puny mitzwot / 'aveirot, compared to these indescribably righteous figures? This typically brings me to/near tears and awakens in me a newfound love of HaShem for having given me the free gift of life.