Emptiness , not everyone sees people as company for example - introverts , and socializing can be exhausting for them and can be overwhelming for them Or even maybe spending too much time on social media , or not being emotionally available .
This is my personal opinion, So basically you can be around hundreds of people and mentally feel alone because nobody can really relate to you as a person, or really understand you as a person, some people make music to express how they feel towards some situations so people can “relate to it”. Like I’m very known around my city but I feel like nobody truly understands me and I feel alone......
so basically you mentally feel alone but physically be around others.
Beowulf reveals traits prized most highly by his culture by being brave, honorable, respectful of his father and ancestors, a great warrior, [ and a defender of his people. ] This answer has been confirmed as correct and helpful.