user567: 

May I use this Tibetan flag above door and will this protect house from negative and bad energy?
I know importance of chanting OM MA NI PADME HUM.
So is it helpful or just feng shui thing?
I thought to ask before having one above the main door.

user13709: If it helps guard your and others' hearts as a summons to mindfulness it is quite useful.
If it is intended to ward off a jet falling from the sky it is not so useful.
If you are looking for a guard against "Negative and bad energy (black magic)" you are looking for a place without fear.

567: <p><a href="https://i.stack.imgur.com/a3bS7.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/a3bS7.jpg" alt="OM MA NI PADME HUM"></a>
<a href="https://i.stack.imgur.com/k305c.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/k305c.jpg" alt="enter image description here"></a></p>

<p>May I use this Tibetan flag above door and will this protect house from negative and bad energy?<br>
I know importance of chanting <strong>OM MA NI PADME HUM.</strong><br>
So is it helpful or just <strong><em>feng shui</em></strong> thing?<br>
I thought to ask before having one above the main door.</p>
 13709: <p>If it helps guard your and others' hearts as a summons to mindfulness it is quite useful.</p>

<p>If it is intended to ward off a jet falling from the sky it is not so useful.</p>

<p>If you are looking for a guard against "Negative and bad energy (black magic)" you are looking for a <a href="https://suttacentral.net/sn46.56/en/sujato" rel="nofollow noreferrer">place without fear</a>.</p>
