As energy beings, we share the larger energetic field with the rest of reality. We all swim in the same ocean, so in the highest order of things, we can't escape any of it. The quote of the day is: "None of us can truly be happy until all of us are."
In the simplest sense, GROUNDING means feeling your energy grounded into (or held by) the earth beneath you and/or the sky above you, with you as a hollow bone or conduit through which pure energy flows in and out on every breath.
PRACTICE means you literally do a spiritually-based activity every single day that centers you into your highest self (like yoga, meditation, mindfulness, art, dance, etc.).
We can't serve those around us when we ourselves feel off-balance or are emotionally overwhelmed and energetically exhausted. To truly show up in the world, we must take care of ourselves so we can stand with genuine confidence and powerful presence. As the saying goes, "Put on your oxygen mask first, then help others with theirs."