Could you explain what does Buddha means by saying “ Attā hi attanō nāthō kō hi nāthō parō siyā attanā hi sudanténa nātham labhati dullabham” ?

Thank you for reaching out with your question. From a Buddhist perspective, the quote you mentioned means that one's self is their own protector and no one else can be a better protector than oneself. This is because one's own mind is the source of happiness and suffering, and therefore, it is important to take responsibility for one's own thoughts and actions. From a psychological perspective, this quote can be seen as a reminder that we have agency over our lives and we can take control of our thoughts and behaviors. It is a call to cultivate self-awareness, self-compassion, and self-efficacy. I understand that this quote can be interpreted in different ways and may be challenging to fully comprehend. It is important to remember that Buddhism and psychology share common principles such as the importance of mindfulness, compassion, and self-awareness. These principles can help us navigate life's challenges and cultivate a sense of inner peace and well-being. It is also important to remember that we are all on a journey of self-discovery and growth, and it is okay to seek guidance and support along the way. In terms of coaching advice, I would suggest focusing on cultivating mindfulness and self-awareness. This can involve setting aside time each day to check in with yourself, observe your thoughts and emotions, and practice self-compassion. It is also important to identify your values and goals, and take small steps towards achieving them. Remember to be patient and kind to yourself, and seek support from loved ones or a professional if needed.