from the heart
With deep emotional sincerity. I know it sounds cliché, but the best way to give a speech like this is to speak from the heart. Homemade gifts aren't always flashy, but they come from the heart.
from the heart
Fig. from a deep and sincere emotional source. I know that your kind words come from the heart. We don't want your gift unless it comes from the heart.
(come) (straight) from the ˈheart
(be) genuine and sincere: The letter comes straight from the heart. He means every word of it.