When we attach to beliefs and certain philosophies, we are being too serious; and thus anyone can come and attack us and bother us. When we become to rigid and strict on our lifestyle, we might damage relationships by asking the same level from our partner; and thus ruin connection with people.
All this and more is being too into our own ego, too strict, too serious in life; and so, when this happens our minds become intolerant, easily insulted, extremely proud and insensitive.
If we become too proud and insensitive then we fall into negativity, tyranny, and a dark abyss in our subconscious; however, we might not see it happening in ourselves, as our personalities become blinded by this strict and serious poison affecting our minds while we lower self-awareness.
Life can have its ups and downs, your mind might make life difficult, and you might drown in a glass of water, emotionally speaking that is; and so, that is why your mind must be harmonious, peaceful, ready to take things lightly and laugh at the challenges you meet.
And, especially in relationships, you must be flexible, understanding, tolerant, loving, accepting of the other; hence, you must laugh and see the good side of situations and people, be positive and dare see the beauty behind your life, your situations, and behind difficult moments.